Construction et validation d'une échelle dimensionnelle de l'humeur : multidimensional assessment of thymic states (MAThyS)

Confirmatory analyses demonstrated a good validity for this scale, fair convergent and divergent validity (multitrait multimethod analyses (MTMM)), good internal consistency both at global and dimensional level (Alpha Cronbach ranging from 0.70 to 0.93). The MathyS scale is moderately correlated with both the Montgomery and Åsberg depression rating scale (MADRS) (depression score; r = −0.45) and the mania rating scale (MAS) (manic score; r = 0.56). Some dimensions were linked (emotional reactivity and thought processes, r = 0.71; psychomotricity and motivation, r = 0.70). Analysing the divergent validity of items led us to redefine three of them. Following this validation step, exploratory analyses suggest that a four-dimension factorial structure is more appropriate. However, the statistical model is very close to the clinically relevant five-dimensional model. Further studies are needed to explore the relevance of retaining this dimension as a useful descriptive element.